已知函数
,在定义域上有两个极值点
.
(1)求实数
的取值范围;
(2)求证:若
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef5996daac7f4ddb623e33d97b993b79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6c731a7f5e224b3ec4fc3c960e8550.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求证:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6410b602edb32b711d2c8e959ff602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7562a4dc6895a5d9d23dbc898c0c5c63.png)
更新时间:2022-06-20 11:33:04
|
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解答题-证明题
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解题方法
【推荐1】已知函数
且
.
(1)求
;
(2)证明:
存在唯一的极大值点
,且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f450df1f33890352e96f0dd0d859cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22e38c541dec8fce1d26886e5ef7d21f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc94b241dbf16e8adcbc0524eb89cbf.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
名校
解题方法
【推荐2】已知函数
,
(
为常数)
(1)求函数
在
处的切线方程;
(2)设
.
(ⅰ)若
为偶数,当
时,函数
在区间
上有极值点,求实数
的取值范围;
(ⅱ)若
为奇数,不等式
在
上恒成立,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f315977e8c623e924148848728d187fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c002b71623a6d212c1d6ff215e448577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a2ec02caf837c6e7e0b76dd9acc7f0.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3155d6c18a75a92a6ec4802fc17891b.png)
(ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f00f2f6ab162f9333ec55db195d663b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87a74b52ecccbf8c007dd60560ea1861.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b029e85e686623cdef977b2cb1f207a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-证明题
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【推荐3】已知函数 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634f7efbbe5f523e690e38471d1b1d70.png)
(1)当
时,求函数
的单调区间;
(2)当
时,试判断函数
零点的个数,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634f7efbbe5f523e690e38471d1b1d70.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d4a2d4a99bf35ab3fefbdf9a442df2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
解答题-证明题
|
较难
(0.4)
名校
解题方法
【推荐1】已知函数
.
(1)设曲线
在
处的切线为
,求证:
;
(2)若
有两个根
,
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14917251f7a86e0cd41905c45af9255d.png)
(1)设曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7e4f19bc4ea459e362a5acaaa82c8cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338316b0fe50fdea0f2f75aec4c990dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97b077eb60150f4b57212731ab2337b9.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
解题方法
【推荐1】已知函数
.
(1)若
,求函数
在
处的切线方程;
(2)讨论
极值点的个数;
(3)若
是
的一个极值点,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20e8f4abe3648ebe8f0871a3839fbc5f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2367b48e8f6dbbfe3dd14f6eab8238a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea7bf2f160b1873b66ec4c5e1c1286c.png)
您最近一年使用:0次
解答题-问答题
|
较难
(0.4)
解题方法
【推荐2】已知函数
.
(1)若不等式
对任意
恒成立,求实数m的取值范围;
(2)若函数
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内存在极值,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed103b909f595833481560f8d66db5e7.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf7a0098d4ea8a0ad76dab74698fcb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc452aa0eb3d41e507fc77675ae5ccc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9242dd26ba42e906d512542f02807779.png)
您最近一年使用:0次